Canon EF 24-105mm f/4L IS II USM Review

October 14, 2016 | Mark Goldstein |

Sharpness at 105mm

The sharpness tests for this review were carried out using a real-world subject rather than a test chart. The Canon EF 24-105mm f/4L IS II USM lens was attached to a Canon 5D Mark IV body, which in turn was mounted on a sturdy tripod. Self-timer mode was activated. Slight tonal changes are due to slight changes in natural light during the session.

The full frameThe full frame at 105mm

Center and edge sharpness are OK wide open at f/4- f/5.6, and good between f/8 and f/11. At f/16 and f/22 sharpness across the frame is beginning to drop-off a little due to diffraction, but is still commendably high.

Aperture Centre Crop Edge Crop
f/4 f4.jpg f4.jpg
f/5.6 f5_6.jpg f5_6.jpg
f/8 f8.jpg f8.jpg
f/11 f11.jpg f11.jpg
f/16 f16.jpg f16.jpg
f/22 f22.jpg f22.jpg